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New Video Calling App Google Duo Launched

Video Calling App Google Duo

Meet Duo Google's new free video calling app. It's like Facetime or Skype but it works across Apple and Android smartphones. Another big difference is that with Google Duo's Knock Knock feature, users can preview video of the person calling. The Google Duo App is free to download and works on both cellular networks and Wi-Fi. But it won't work on Desktops, Laptops or Tablets.